Falls in the Niagara River between the cities of Niagara Falls, New York, and Niagara Falls, Ontario, Canada. The falls are divided by Goat Island into the American Falls, 50.9 m (167 ft) high, and the Canadian, or Horseshoe, Falls, 48.2 m (158 ft) high. two very large waterfalls on the border between Canada and the US, which are popular with tourists and are also used to produce electricity. Great falls of the Niagara River, on the U.S.-Canadian border. They are divided by Goat Island into the Horseshoe (or Canadian) Falls and the American Falls. At the foot of the American Falls is the Cave of the Winds, a large rocky chamber formed by erosion. The river below the falls flows between high cliffs, forming Whirlpool Rapids. Bridges spanning the river include Rainbow Bridge between the U.S. and Canadian cities of Niagara Falls. French missionary Louis Hennepin visited in 1678. Tourism is a major industry, and the falls are a hydroelectric centre
large waterfall located on the border between the United States and Canada; city in southeastern Ontario (Canada) located on the Niagara River just below the falls; city in western New York State at the falls of the Niagara river (USA); (Slang) testicles (because it rhymes with "balls")